Metal-roofing machine



(ModeL) W. 0. BELL.

Metal Roofing Machine.

No. 231,982. Patented Sept. 7,1880.

Wines-565') MI'N'III IM'HIJIIIWMTW TATES XVILLIAM G. BELL, OF SAVANNAH, NEW YORK.

METAL-ROOFING MACHINE.

SPECIFICATION forming part of Letters Patent No. 231,982, dated September 7, 1880.

Application filed May 1, 1880.

To all whom it may concern Be it known that I, WILLIAM G. BELL, of Savannah, in the county of Wayne, State of New York, have invented a certain new and useful Metal-Roofing Machine; and I do here by declare that the following is a clear and exact description of the same, reference being given in the accompanying drawings, making a part of this specification, in which-- Figure 1 represents a plan view of the machine complete. Fig. 2 is aside view of crank or gear side of the machine. Fig. 3 represents a longitudinal vertical section of the machine. Fig. 4 represents a front elevation. Figs. 5 and 6 represent details.

Similar letters of reference also represent like parts in a more minute description.

The object of my invention is to turn up at right angles the edges of strips of roofing tin or metal suitable and ready for seaming by being drawn between a succession of rollers placed relatively to each other, as hereinafter described.

A represents a roller at the front part of the machine, placed there to support the metal and to aid in entering the metal strip.

B B represent the guides through which the strips of tin pass on entering the rollers. They are formed with grooves to conduct the tin, and are made adjustable by means of slot and set-screws It It to accommodate the desired Width.

0 is the lower or under one of the first set of horizontal rollers between which the tin first enters. This has beveled flanges at either end.

D is the upper one of the first set, and is the mate to 0. It is beveled off at each end to match the flange or roller 0, into and over which it works, being propelled by cog-gearing 0, which is hereinafter described.

E and F are the second pair of rollers, the lower one, E, having flanges turned nearly at right angles, and made to revolve by means of the same combination of cog-gearing which operates the first set above mentioned, above which, and fitted between said flanges, the upper roller, F, is made to revolve by the metal coming in contact with it.

G, the last horizontal roller, is useful for supporting the metal after it leaves the shap- (ModeL) ing-rollers, also for holding it in position to be operated upon by the short upright rollers H H at each end, which are made adjustable at M. These upright rollers H H are set with the tops inclining toward the center of the machine, and as the strip passes over the roller G they force the turned edge to an angle smaller than the one required, which is necessary to offset the spring of the metal, and thus leave the edge at a right angle to the body of the metal strip.

The upper roller of each set is held above the lower ones in boxes P, formed in an upright adjustable section, in either edgeof which are grooves. Upright openings are formed in the sides of the machine to receive these sections, into the grooves of which the side plates of the machine are fitted, holding them firmly in their place. The lower roller of each set is held in a similar manner, but in a separate grooved section or box, which, by being detached, (the upper from the lower ro1lers,) allows the latter to rise or fall independently of the former.

The sections holding the upper rollers are held down and firmly pressed upon the lower by means of caps J and set-screws L, under which are rubber springs K, to admit of a greater separation of the rollers for the passage of locked scams or any other unusual thickness.

The shafts of the rollers pass through the boxes on one side of the machine and connect on the outside with a combination of coggearing, O, and a wheel-crank, N, from which both sets of rollers receive simultaneous motion.

hen in use the machine is placed upon the roof and the tin is run through it from a roll or strip, usually made the length of the roof. The tin passes through the guides B B and is drawn between the rollers G and D. The bevel-roller D, matching into the flanged roller G, partially turns up the edge. It is then caught by rollers E and F and turned up nearly to a right angle. It then passes over roller G, when the upright rollers H H force it inward beyond a square turn but as it leaves the machine the spring or elasticity of the metal leaves it at a perfect right angle.

The advantages of my invention are: It does match, with the upright adjustable rollers H H, for simultaneously turning both edges of metallic roofing-strips to any required angle by a continuous movement of the metal strip 1 through and between said rollers, and with means for operating the horizontal rollers.

WILLIAM (J. BELL.

the work smoothly and does not check or crack the soldered seams as the case is when I the edges are turned to a right angle by the usual process. It does the work rapidly and uniformly, which has hitherto been done by a more expensive, slow, and less perfect method. I

Having thus described my invention, what I claim as new, and desire to secure by Let ters Patent, is-- The combination of guides and of horizontal rollers, with flanged and beveled ends to Witnesses W. M. WOODWORTI-I, A. S. FARNUM. 

